CN102207218A - Adjustable expansion-tank decompressing valve - Google Patents
Adjustable expansion-tank decompressing valve Download PDFInfo
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- CN102207218A CN102207218A CN 201110068778 CN201110068778A CN102207218A CN 102207218 A CN102207218 A CN 102207218A CN 201110068778 CN201110068778 CN 201110068778 CN 201110068778 A CN201110068778 A CN 201110068778A CN 102207218 A CN102207218 A CN 102207218A
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- valve
- tank
- valve seat
- spring
- decompressing
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Abstract
The invention discloses an adjustable expansion-tank decompressing valve, which belongs to a tank cover component of an automobile expansion tank, and aim to provide an expansion-tank decompressing valve having the advantages of low production cost and high qualification rate of primary assembly and being capable of meeting different working pressure requirements of various types of automobiles. The adjustable expansion-tank decompressing valve comprises a tank cover, a valve body with a valve seat, a valve core and a spring, wherein the valve body with the valve seat is fixed in the tank cover, the valve core and the spring are arranged in the valve seat, the valve core (5) is pressed to an air intake (4) at the bottom of the valve seat (11) by the a spring (6), the spring (6) is pressed by a valve cover (7) arranged in the valve seat (11) in a threaded manner, and a vent hole (9) and a screwdriver port (8) are arranged on the valve cover. The adjustable expansion-tank decompressing valve disclosed by the invention has the advantages of simple structure, convenience in use and maintenance, wide generality, etc., and can meet different working pressure requirements of various types of automobiles.
Description
Technical field: the present invention relates to a kind of Decompression valves, relate in particular to a kind of expansion tank used for automobile Decompression valves.
Background technique: expansion tank is a vitals in the car engine cooling system, and the Decompression valves that is located on the expansion tank case lid is to keep motor car engine cooling recirculation system normal operating pressure, avoid overload pressure to damage systematic part and cause the malfunctioning primary component of cooling system.As everyone knows, the engine power difference of various automobiles requires the expansion tank pressure release pressure of coupling also to have nothing in common with each other.At present, the Decompression valves of various expansion tank used for automobile is uncontrollable stationary structure, and working pressure is a fixed value, does not therefore possess versatility.In addition, also there is the following limit that lacks in process of production in conventional expanded case Decompression valves: 1) since the working pressure precision of expansion tank Decompression valves generally be controlled at ± scope of 0.01Mpa in, therefore very high to the resiliency characteristics required precision of Decompression valves spring, present spring manufacturing technology level is difficult to guarantee; 2) in order to guarantee that the length of spring compressed distance is accurately consistent, must improve the dimensional accuracy of each part of Decompression valves, increase manufacture cost; 3) requirement of product assembly precision is high, the assembling difficulty is big; 4) product percent of pass is low and can't reprocess.
Summary of the invention: at the above-mentioned defective that exists in the prior art, the present invention aim to provide a kind of cost of production low, once assemble the up-to-standard rate height, and can adapt to the adjustable expanded case Decompression valves of various vehicle different operating pressure demand.
To achieve these goals, the present invention is by the following technical solutions: it comprises case lid, be fixed on the valve body that has valve seat in this case lid, be located at spool and spring in the described valve seat, spool is by the air inlet position of spring compression in the valve seat bottom, spring is compressed by the valve gap that is located in the valve seat by screw thread, and this valve gap is provided with the exhaust port and the screw edge of a knife.
Between spool and valve seat, be provided with valve pad, between valve body and case lid, be provided with seal ring.
Compared with the prior art, therefore the present invention can adjust the compression distance of spring by screwed valve gap, thereby satisfy the requirement of various vehicle expansion tank different operating pressure owing to adopted technique scheme, and versatility is wide.In addition, adopt technological scheme of the present invention not only to reduce the accuracy of manufacturing of parts such as spring, and can reduce the assembly precision and the difficulty of product, one time packaging qualification rate can reach 100%, has reduced the production cost significantly.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a fundamental diagram of the present invention;
Fig. 3 is an assembling stereochemical structure intention of the present invention.
Among the figure: the seal ring 1 valve body 2 valve pads 3 inlet holes 4 spools 5 springs 6 valve gaps 7 screw edges of a knife 8 exhaust ports 9 case lids 10 valve seats 11
Embodiment: the invention will be further described below in conjunction with accompanying drawing and specific embodiment:
In Fig. 1～3, the valve body 2 that has valve seat 11 is fixed in the case lid 10, and the bottom that the inwall of valve seat 11 is provided with screw thread, this valve seat is provided with inlet hole 4; The spool 5 that is located at this air inlet position is compressed by the valve gap 7 that is located at the spring 6 in the valve seat 11 and be located in the valve seat 11 by screw thread, and valve gap 7 is provided with the exhaust port 9 and the screw edge of a knife 8.Tight in order to seal, between spool 5 and valve seat 11, be provided with valve pad 3, between valve body 2 and case lid 10, be provided with seal ring 1.
Working principle, as shown in Figure 2: when the pressure in the expansion tank surpasses the working value of setting, pressurized gas just can back down spool 5 and enter valve seat 11 by the inlet hole 4 of valve seat 11 bottoms, discharge by exhaust port on the valve gap 79 and the air vent that is located at case lid 10 screw thread places then; Thereby guarantee that the working pressure in the motor car engine cooling recirculation system maintains in the normal range (NR).
Claims (2)
1. adjustable expanded case Decompression valves, comprise case lid, be fixed on the valve body that has valve seat in this case lid, be located at spool and spring in the described valve seat, it is characterized in that: spool (5) is located by the inlet hole (4) that spring (6) is pressed on valve seat (11) bottom, spring (6) is compressed by the valve gap (7) that is located at by screw thread in the valve seat (11), and this valve gap is provided with the exhaust port (9) and the screw edge of a knife (8).
2. adjustable expanded case Decompression valves according to claim 1 is characterized in that: be provided with valve pad (3) between spool (5) and valve seat (11), be provided with seal ring (1) between valve body (2) and case lid (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110068778 CN102207218A (en) | 2011-03-22 | 2011-03-22 | Adjustable expansion-tank decompressing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110068778 CN102207218A (en) | 2011-03-22 | 2011-03-22 | Adjustable expansion-tank decompressing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102207218A true CN102207218A (en) | 2011-10-05 |
Family
ID=44696200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110068778 Pending CN102207218A (en) | 2011-03-22 | 2011-03-22 | Adjustable expansion-tank decompressing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102207218A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2646405A1 (en) * | 1989-04-28 | 1990-11-02 | Bailly Comte Ets | Safety plug for pressurised circuit |
| US5404904A (en) * | 1993-09-24 | 1995-04-11 | Cooper Industries, Inc. | Adjustable control valve with limited adjustment range and self locking means |
| CN101836021A (en) * | 2007-08-24 | 2010-09-15 | 肺部紧急情况照料有限公司 | Adjustable valve |
| CN201954064U (en) * | 2011-03-22 | 2011-08-31 | 贵州华烽电器有限公司 | Adjustable pressure release valve for expansion tank |
-
2011
- 2011-03-22 CN CN 201110068778 patent/CN102207218A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2646405A1 (en) * | 1989-04-28 | 1990-11-02 | Bailly Comte Ets | Safety plug for pressurised circuit |
| US5404904A (en) * | 1993-09-24 | 1995-04-11 | Cooper Industries, Inc. | Adjustable control valve with limited adjustment range and self locking means |
| CN101836021A (en) * | 2007-08-24 | 2010-09-15 | 肺部紧急情况照料有限公司 | Adjustable valve |
| CN201954064U (en) * | 2011-03-22 | 2011-08-31 | 贵州华烽电器有限公司 | Adjustable pressure release valve for expansion tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111005 |